我在网上下载的对联广告 代码，在IE其他版本测试都正常，但是在IE9里面无法显示，哪位大神帮忙改一下，万分感激！
<script type="text/javascript">html，javascript ie javascript
var showad = true;
var Toppx = 60; //上端位置
var AdDivW = 100; //宽度
var AdDivH = 360; //高度
var PageWidth = 800; //页面多少宽度象素下正好不出现左右滚动条
var MinScreenW = 1024; //显示广告的最小屏幕宽度象素
var ClosebuttonHtml = '<div align="right" style="position: absolute;top:0px;right:0px;margin:2px;padding:2px;z-index:2000;"><a href="JavaScript:;" onclick="hidead()" style="color:red;text-decoration:none;font-size:12px;">关闭</a></div>'
var AdContentHtml = '<div align="center" style="color:green;font-size:23pt;font-family:黑体;"><a target=_blank href=http://down.admin5.com><br>广<br>告<br>内<br>容<br>可<br>任<br>何<br>形<br>式</a></div>';
document.write('<div id="JavaScript.LeftDiv" style="position: absolute;border: 1px solid #cccccc;background-color:#f7f7f7;z-index:1000;width:' + AdDivW + 'px;height:' + AdDivH + 'px;top:-1000px;word-break:break-all;display:none;">' + ClosebuttonHtml + '<div>' + AdContentHtml + '</div></div>');
alert("test");
document.write('<div id="JavaScript.RightDiv" style="position: absolute;border: 1px solid #cccccc;background-color:#f7f7f7;z-index:1000;width:' + AdDivW + 'px;height:' + AdDivH + 'px;top:-1000px;word-break:break-all;display:none;">' + ClosebuttonHtml + '<div>' + AdContentHtml + '</div></div>');
function scall() {
if (!showad) { return; }
if (window.screen.width < MinScreenW) {
alert("临时提示：\n\n显示器分辨率宽度小于" + MinScreenW + ",不显示广告");
showad = false;
document.getElementById("JavaScript.LeftDiv").style.display = "none";
document.getElementById("Javascript.RightDiv").style.display = "none";
return;
}
var Borderpx = ((window.screen.width - PageWidth) / 2 - AdDivW) / 2;
document.getElementById("JavaScript.LeftDiv").style.display = "";
document.getElementById("JavaScript.LeftDiv").style.top = document.body.scrollTop + Toppx;
document.getElementById("JavaScript.LeftDiv").style.left = document.body.scrollLeft + Borderpx;
document.getElementById("JavaScript.RightDiv").style.display = "";
document.getElementById("JavaScript.RightDiv").style.top = document.body.scrollTop + Toppx;
document.getElementById("JavaScript.RightDiv").style.left = document.body.scrollLeft + document.body.clientWidth - document.getElementById("JavaScript.RightDiv").offsetWidth - Borderpx;
}
function hidead() {
showad = false;
document.getElementById("JavaScript.LeftDiv").style.display = "none";
document.getElementById("JavaScript.RightDiv").style.display = "none";
}
window.onscroll = scall;
window.onresize = scall;
window.onload = scall;
</script>
document.getElementById("JavaScript.LeftDiv").style.top = document.body.scrollTop + Toppx;
document.getElementById("JavaScript.LeftDiv").style.left = document.body.scrollLeft + Borderpx;
document.getElementById("JavaScript.RightDiv").style.display = ""; document.getElementById("JavaScript.RightDiv").style.top = document.body.scrollTop + Toppx;
document.getElementById("JavaScript.RightDiv").style.left = document.body.scrollLeft + document.body.clientWidth - document.getElementById("JavaScript.RightDiv").offsetWidth - Borderpx;
